128289408

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{829}}^1$

素因数の和:890

約数の個数: 128

約数和(自身を含む): 379276800

約数和(自身を除く): 250987392

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 32, 39, 48, 52, 62, 64, 78, 93, 96, 104, 124, 128, 156, 186, 192, 208, 248, 312, 372, 384, 403, 416, 496, 624, 744, 806, 829, 832, 992, 1209, 1248, 1488, 1612, 1658, 1664, 1984, 2418, 2487, 2496, 2976, 3224, 3316, 3968, 4836, 4974, 4992, 5952, 6448, 6632, 9672, 9948, 10777, 11904, 12896, 13264, 19344, 19896, 21554, 25699, 25792, 26528, 32331, 38688, 39792, 43108, 51398, 51584, 53056, 64662, 77097, 77376, 79584, 86216, 102796, 106112, 129324, 154194, 154752, 159168, 172432, 205592, 258648, 308388, 318336, 334087, 344864, 411184, 517296, 616776, 668174, 689728, 822368, 1002261, 1034592, 1233552, 1336348, 1379456, 1644736, 2004522, 2069184, 2467104, 2672696, 3289472, 4009044, 4138368, 4934208, 5345392, 8018088, 9868416, 10690784, 16036176, 21381568, 32072352, 42763136, 64144704, 128289408]

約数ペア:

[(1, 128289408), (2, 64144704), (3, 42763136), (4, 32072352), (6, 21381568), (8, 16036176), (12, 10690784), (13, 9868416), (16, 8018088), (24, 5345392), (26, 4934208), (31, 4138368), (32, 4009044), (39, 3289472), (48, 2672696), (52, 2467104), (62, 2069184), (64, 2004522), (78, 1644736), (93, 1379456), (96, 1336348), (104, 1233552), (124, 1034592), (128, 1002261), (156, 822368), (186, 689728), (192, 668174), (208, 616776), (248, 517296), (312, 411184), (372, 344864), (384, 334087), (403, 318336), (416, 308388), (496, 258648), (624, 205592), (744, 172432), (806, 159168), (829, 154752), (832, 154194), (992, 129324), (1209, 106112), (1248, 102796), (1488, 86216), (1612, 79584), (1658, 77376), (1664, 77097), (1984, 64662), (2418, 53056), (2487, 51584), (2496, 51398), (2976, 43108), (3224, 39792), (3316, 38688), (3968, 32331), (4836, 26528), (4974, 25792), (4992, 25699), (5952, 21554), (6448, 19896), (6632, 19344), (9672, 13264), (9948, 12896), (10777, 11904)]